Update ABP Blazor UI v4.x to v5.0 Migration Guide

docs/en/Migration-Guides/Abp-5-0-Blazor.md

@@ -4,4 +4,16 @@
 
 ## Upgrading to the latest Blazorise
 
-ABP 5.0 uses the latest version of the [Blazorise](https://blazorise.com/) library. Please upgrade the Blazorise NuGet packages in your solution.
+ABP 5.0 uses the latest version of the [Blazorise](https://blazorise.com/) library. Please upgrade the Blazorise NuGet packages in your solution.
+
+## Bootstrap 5
+
+ABP 5.0 now works with Bootstrap 5. For details, please refer to the official migration guide provided by Bootstrap.
+
+Replace `Blazorise.Bootstrap` with `Blazorise.Bootstrap5` package.
+
+Replace `AddBootstrapProviders()` with `AddBootstrap5Providers()`.
+
+## Update Bundle
+
+Use `abp bundle` command to update bundles if you are using Blazor WebAssembly.